[PATCH v3 3/9] efi/libstub: Remove .note.gnu.property

[Kees Cook]

In preparation for adding --orphan-handling=warn to more architectures,
make sure unwanted sections don't end up appearing under the .init
section prefix that libstub adds to itself during objcopy.

Signed-off-by: Kees Cook <keescook at chromium.org>
---
 drivers/firmware/efi/libstub/Makefile | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/firmware/efi/libstub/Makefile b/drivers/firmware/efi/libstub/Makefile
index 75daaf20374e..9d2d2e784bca 100644
--- a/drivers/firmware/efi/libstub/Makefile
+++ b/drivers/firmware/efi/libstub/Makefile
@@ -66,6 +66,9 @@ lib-$(CONFIG_X86)		+= x86-stub.o
 CFLAGS_arm32-stub.o		:= -DTEXT_OFFSET=$(TEXT_OFFSET)
 CFLAGS_arm64-stub.o		:= -DTEXT_OFFSET=$(TEXT_OFFSET)
 
+# Remove unwanted sections first.
+STUBCOPY_FLAGS-y		+= --remove-section=.note.gnu.property
+
 #
 # For x86, bootloaders like systemd-boot or grub-efi do not zero-initialize the
 # .bss section, so the .bss section of the EFI stub needs to be included in the
-- 
2.25.1